obama care doesn't make it less expensive. >> reporter: he wants obama care gone. including the prescription drug benefit for seniors. but he does want to keep one of the most popular pieces of obama care, although he doesn't say exactly how his plan will work. >> we have to make sure people who have pre-existing conditions are able to get insure and had that folks that get sick don't get dropped by their insurance company. >> reporter: romney and his running mate, paul ryan, propose to cap malpractice insurance, cut medicaid by $810 billion over the next ten years, give states more control over their medicaid funds, overhaul medicare. the overhaul, people now younger than 55 when they reach retirement would have the option of getting a voucher to purchase private insurance or they could stick with traditional medicare. >> this financial support system is designed to guarantee that seniors can always afford medicare coverage no exceptions. >> there are a lot of differences, wolf, between the two plans. medicaid is probably something that's not discussed as much. bu